A group calling itself the Olga Cell of the Informal Anarchist Federation International Revolutionary Front has claimed responsibility for the non-fatal shooting of a nuclear-engineering executive on 7 May in Genoa. The same group sent a letter bomb to a Swiss pro-nuclear lobby group in 2011; attempted to bomb IBM’s nanotechnology laboratory in Switzerland in 2010; and has ties with a group responsible for at least four bomb attacks on nanotechnology facilities in Mexico.

Another branch of the group attacked railway signals in Bristol, UK, last week in an attempt to disrupt employees of nearby defence technology firms (no word on whether anyone noticed the difference between an anarchist attack and a normal Wednesday on the UK's railways).